X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma03.mx.aol.com ([64.12.206.41] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5025366 for flyrotary@lancaironline.net; Sun, 19 Jun 2011 16:09:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.41; envelope-from=DLOMHEIM@aol.com Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) by imr-ma03.mx.aol.com (8.14.1/8.14.1) with ESMTP id p5JK8eiE012806 for ; Sun, 19 Jun 2011 16:08:40 -0400 Received: from DLOMHEIM@aol.com by imo-ma02.mx.aol.com (mail_out_v42.9.) id q.112d.21d3302 (55724) for ; Sun, 19 Jun 2011 16:08:35 -0400 (EDT) Received: from magic-m22.mail.aol.com (magic-m22.mail.aol.com [172.20.22.195]) by cia-md02.mx.aol.com (v129.10) with ESMTP id MAILCIAMD027-d9ac4dfe574338a; Sun, 19 Jun 2011 16:08:35 -0400 From: DLOMHEIM@aol.com Message-ID: <14e2a.492b20fe.3b2fb143@aol.com> Date: Sun, 19 Jun 2011 16:08:35 EDT Subject: David's IVO Prop To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_14e2a.492b20fe.3b2fb143_boundary" X-Mailer: 9.0 Security Edition for Windows sub 5378 X-AOL-IP: 72.214.103.20 X-Spam-Flag:NO X-AOL-SENDER: DLOMHEIM@aol.com --part1_14e2a.492b20fe.3b2fb143_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit >My notes are at the hanger, by memory I think the numbers were 5850rpm, 29.5 MAP high RPM on 68" >three blade Ivoprop at 920 ft. above sea level David: You are using the high pitch IVO blades I presume (I've read they have a "+" on the hub. Is your set up for fixed pitch or in-flight adjustable? If In-flight adjustable, did you hook up an amp meter to your prop control toggle switch circuit so you can get an idea of the amount of pitch you have set in? On take-off with the Subie, do you have to keep adding pitch on rollout to keep the engine from over-speeding? Thanks for any info...I also will be flying behind an IVO (someday) so am curious what others are finding out about using them on RV's. Ross Farnham's SDS site has a lot of good information on his use of the IVO on his Turbo Subie 6A... Blue skies, Doug --part1_14e2a.492b20fe.3b2fb143_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

>My notes are at the hanger, by memory I think the numbers were 58= 50rpm,=20 29.5 MAP high RPM on 68" >three blade Ivoprop at 920 ft. above sea=20 level

David:

You are using the high pitch IVO blades I presume (I've read they hav= e a=20 "+" on the hub. Is your set up for fixed pitch or in-flight=20 adjustable?

If In-flight adjustable, did you hook up an amp meter to your prop co= ntrol=20 toggle switch circuit so you can get an idea of the amount of pitch you ha= ve set=20 in?

On take-off with the Subie, do you have to keep adding pitch on rollo= ut to=20 keep the engine from over-speeding?

Thanks for any info...I also will be flying behind an IVO (someday)= so am=20 curious what others are finding out about using them on RV's. Ross= =20 Farnham's SDS site has a lot of good information on his use of the IVO on= his=20 Turbo Subie 6A...

Blue skies,

Doug

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